參數(shù)資料
型號: ATA5744N-TGQY
廠商: ATMEL CORP
元件分類: 通信及網(wǎng)絡(luò)
英文描述: SPECIALTY TELECOM CIRCUIT, PDSO20
封裝: LEAD FREE, SO-20
文件頁數(shù): 16/20頁
文件大小: 316K
代理商: ATA5744N-TGQY
5
4893A–RKE–11/05
ATA5744
Figure 3-2 shows a typical input matching network for f
RF = 315 MHz and fRF = 433.92 MHz
using a SAW. Figure 3-3 on page 6 illustrates the input matching to 50
without a SAW. The
input matching networks shown in Figure 3-3 on page 6 are the reference networks for the
parameters given in the electrical characteristics.
Figure 3-2.
Input Matching Network with SAW Filter
Table 3-1.
Calculation of LO and IF Frequency
Conditions
Local Oscillator Frequency
Intermediate Frequency
f
RF = 315 MHz, MODE = 0
f
LO = 314 MHz
f
IF = 1 MHz
f
RF = 433.92 MHz, MODE = 1
f
LO = 432.92 MHz
f
IF = 1 MHz
300 MHz < fRF < 365 MHz, MODE = 0
365 MHz < f
RF < 450 MHz, MODE = 1
f
LO
f
RF
1
314
----------
+
-------------------
=
f
IF
f
LO
314
----------
=
f
LO
f
RF
1
432.92
------------------
+
----------------------------
=
f
IF
f
LO
432.92
------------------
=
IN
IN_GND
OUT
OUT_GND
CASE_GND
B3555
ATA5744
C3
22p
L
25n
C16
100p
C17
8.2p
L3
TOKO LL2012
F27NJ
27n
C2
8.2p
L2
TOKO LL2012
F33NJ
33n
1
2
3, 4 7, 8
5
6
8
9
RF
IN
f
RF = 433.92 MHz
LNAGND
LNA_IN
IN
IN_GND
OUT
OUT_GND
CASE_GND
B3551
C3
47p
L
25n
C16
100p
C17
22p
L3
TOKO LL2012
F47NJ
47n
C2
10p
L2
TOKO LL2012
F82NJ
82n
1
2
3, 4 7, 8
5
6
8
9
f
RF = 315 MHz
LNAGND
LNA_IN
RF
IN
ATA5744
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ATA5744N-TGSY 功能描述:射頻接收器 ASK Remote Control Rec. 433 MHz RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
ATA5744N-TKQY 功能描述:射頻接收器 ASK Remote Control Rec. 433 MHz RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
ATA5744N-TKQY 19 功能描述:射頻接收器 RF DATA CONTROL RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
ATA5744N-TKSY 功能描述:射頻接收器 ASK Remote Control Rec. 433 MHz RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
ATA5744N-TKSY 19 功能描述:射頻接收器 RF DATA CONTROL RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel